BIOL 232 Human Physiology - assignment Essay Example | Topics and Well Written Essays - 1000 words

BIOL 232 Human Physiology - assignment - Essay Example The ACE inhibitor corrects this problem by inhibiting angiogenesis-converting enzymes, which in turn lower the activity level of the renin-angiotensin-aldosterone system (RAAS). This allows renin from the juxtaglomerular apparatus to produce angiotensin, which tells the adrenal glands to produce aldosterone. The ACEI tells the body to do this, thus keeping the blood pressure under control. If the woman was to start taking this, and blood and urine samples were taken, I would see an abnormal level of both sodium and potassium. The woman’s sodium levels would be higher, due to the fact that by using angiotensin produced by the body via the ACEI, it will create more aldosterone, which in turn will cause her kidney tubules to retain more sodium ions. For the same reason, her potassium levels would be lower, as the aldosterone causes kidney tubules to excrete potassium. The ACEI will affect the woman’s cardiac cycle by constricting her arterioles. This will cause arterial bl ood pressure to rise, while decreasing the blood flow. Regardless of the dosage, the woman will have an increase in myocardial capillarization. The glomular filtration rate is the same, which in turn increases her capillary filtration, in spite of lowered kidney blood flow. ... Explain in detail how this weapon would affect the following: a) heart rate, b) kidney function, c) absorption of nutrients following digestion. This weapon would affect the Na/K pump’s action by raising the person’s heart rate, as the Na/K pump’s action would reduce. In addition, it would increase the person’s atrial fibrillation, chances of heart failure, and atrial fluttering. The Na/K pump would no longer be able to assist with myocardial contractility, increasing stroke possibility, decreased tissue perfusion, lowered hemodynamics and worsening of the ventricular function curve. The weapon would affect the kidney function by decreasing renal blood flow, thus raising the glomular filtration rate, which decreases capillary filtration. This in turn will reduce to amount of aldosterone secreted by the body, decreasing sodium absorption and increasing potassium ions within the body. This is because the aldosterone has been reduced; therefore, the kidneys d o not secrete enough potassium. This lowers blood volume and lowers blood pressure. Finally, the weapon would affect nutrient absorption in the rumen of the small and large intestines due to a decrease of cellular sodium levels due to the reduced activity of the Na/K pump. This lowers sodium instability in the gastrointestinal system, lowering the body’s ability to absorb nutrients properly. Question 3. Organophosphates are chemical agents that bind to and inhibit acetylcholine esterase. Explain the effects of exposure to high levels of organophosphates on the somatic nervous system and the parasympathetic division of the autonomic nervous system. Be sure to explain the physiological mechanisms behind these effects. Explain why a person who has

The Effect of Brain Hemisphere Dominance on Learning Research Paper

The Effect of Brain Hemisphere Dominance on Learning - Research Paper Example Teaching and learning have been extensively studied with respect to hemispheric dominance in order to improve the teaching experience for the benefit of students. Left brain dominant students learn better in the classrooms through lectures because they are primarily auditory learners while right brain dominant subjects grasp more knowledge when information is delivered through visual media. This paper is primarily based on analyzing the major effects of brain hemisphere dominance on students’ learning process by reviewing what contemporary research material has to say on the subject. For many years, brain hemisphere dominance has been considered little more than a scientific myth and researchers have had to struggle relentlessly to bring light to the facts. Because the effect of hemisphere dominance on learning is established now, it is important for parents and teachers to realize which children are right brain dominant and which otherwise to adjust teaching methods to those preferences. It is important to realize that â€Å"neither of these hemispheres is superior to the other, they just have different specialized functions† (Duman, 2010, p. 2078). ... lassroom are right brain dominant and which left brain dominant, information can be delivered in a way that is best received by dominant hemispheres and more importantly teachers can then â€Å"review or practice that information in ways that involve their less dominant hemispheres† (Child Learning, 2012). A variety of reliable quiz tests are available these days which can be used teachers to judge brain hemisphere dominance in their students and then devise teaching styles according to results gathered. When right/left hemisphere dominance is decided, true parental and teaching guidance can work miracles in enabling a student to intelligently process his/her thoughts, interact with, and understand others. Research implies that brain hemispheric dominance inflicts huge influence on an individual’s â€Å"study skills, homework habits, and grades† (Fleming, 2013). Right brain dominance is related to an impulsive nature less equipped with the ability to reason while left hemispheric dominance is related to a more logical mind which takes time in reaching decisions by weighing pros and cons of everything. It is claimed that right brain dominant students are rather impulsive, active, and have difficulty coping with verbal directions like in case of lectures. They also face a harder time expressing themselves in words than left brain dominant students and lose track of time easily. On the other hand, the effects of left brain dominance on learning are such that students learn better through verbal directions and effortlessly express their ideas in words. This difference in brain hemispheric dominance explains why right brain dominant individuals are often described as dreamy and left brain dominant persons as very analytical and logical. This difference in brain types is